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Dust removal and denitrification integrated ceramic filter material and preparation method thereof

A ceramic filtration and denitrification technology, which is applied in the field of flue gas catalytic denitrification and dust removal, can solve the problems of short service life, poor acid and alkali corrosion resistance, and high operating costs, so as to save equipment costs and operating costs, solve attenuation and failure, and solve Large waste heat effect

Active Publication Date: 2017-10-24
SHANDONG RES & DESIGN ACADEMY OF IND CERAMICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Invention patent 201010291794.3, using metal materials as the carrier, the catalyst and the metal carrier are combined by impregnation method to prepare the integrated material of denitrification and dust removal, but because the carrier is metal, its acid and alkali corrosion resistance is poor, and the catalyst is on the surface of the carrier , easy to be washed and poisoned, and the service life is extremely short
There is also an invention that combines catalytic materials with filter bags to prepare a filter bag material that integrates denitrification and dust removal [invention patent: CN104524886A], but the filter bag has poor wear resistance, short service life, frequent replacement of equipment, and high operating costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] (1) Aggregate shaping: Put the silicon carbide refractory aggregate into the jet mill for shaping. After the water chestnut of the aggregate is trimmed regularly, the product is sieved when the aggregate is approximately spherical, and the particles with a particle size of 200-500 microns are selected for processing. experiment;

[0074] (2) Support body preparation:

[0075] ① Ingredients: mix the above-mentioned silicon carbide aggregate, high-temperature binder, charcoal, thermosetting resin, and graphite evenly, wherein aggregate accounts for 90% of the total mass of aggregate and high-temperature binder; high-temperature binder accounts for 90% of the total mass of aggregate and high-temperature binder 10% of the mass; pore enhancer accounts for 5% of the total mass of aggregate and high-temperature binder, thermosetting resin accounts for 6% of the total mass of aggregate and high-temperature binder; mold release agent accounts for 0.7% of the total mass of aggreg...

Embodiment 2

[0087] (1) Aggregate shaping: Put the mullite refractory aggregate into the jet mill for shaping, and when the water chestnut of the aggregate is trimmed regularly, the product is sieved when the aggregate is approximately spherical, and the particles with a particle size of 200-280 microns are selected conduct experiment;

[0088] (2) Support body preparation:

[0089] ① Ingredients: Mix mullite aggregate, high-temperature binder, charcoal, thermosetting resin, and graphite evenly, among which aggregate accounts for 95% of the total mass of aggregate and high-temperature binder; high-temperature binder accounts for the total mass of aggregate and high-temperature binder 5% of the mass; the porosity enhancer accounts for 10% of the total mass of the aggregate and the high-temperature binder; the thermosetting resin accounts for 4% of the total mass of the aggregate and the high-temperature binder; the release agent accounts for 0.5% of the total mass of the aggregate and the h...

Embodiment 3

[0101] (1) Aggregate shaping: put the cordierite into the jet mill for shaping, and when the water chestnut of the aggregate is trimmed regularly, the product is sieved when the aggregate is approximately spherical, and the particles with a particle size of 150-200 microns are selected for the experiment;

[0102] (2) Support body preparation:

[0103] ① Ingredients: Mix cordierite, high-temperature binder, charcoal, thermosetting resin, and graphite evenly, among which cordierite accounts for 70% of the total mass of aggregate and high-temperature binder; high-temperature binder accounts for 30% of the total mass of aggregate and high-temperature binder %; pore enhancer accounts for 5% of the total mass of aggregate and high-temperature binder, thermosetting resin accounts for 6% of the total mass of aggregate and high-temperature binder; mold release agent accounts for 0.7% of the total mass of aggregate and high-temperature binder; high temperature The binder is composed of...

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Abstract

The invention belongs to the technical field of flue gas catalytic denitrification and dust removal, and in particular relates to an integrated ceramic filter material for dust removal and denitrification and a preparation method thereof. The dust removal and denitrification integrated ceramic filter material has an asymmetric filter membrane structure, and is loaded with TiO2-ZrO2-CeO2 inside, and the loading of TiO2-ZrO2-CeO2 is 8-22%. The material of the present invention can realize denitrification and dust removal in one step, not just the integration of technology. It can not only solve the problems of waste heat waste of flue gas and low denitrification efficiency in the process of denitrification first, but also solve the process of denitrification first and then dust removal. Attenuation and failure of the catalytic function, short service life, low operating efficiency and high cost of the entire purification system; at the same time, it greatly saves equipment costs and operating costs.

Description

technical field [0001] The invention belongs to the technical field of flue gas catalytic denitrification and dust removal, and in particular relates to an integrated ceramic filter material for dust removal and denitrification and a preparation method thereof. Background technique [0002] With the continuous improvement and improvement of air pollution emission control regulations, the pollution caused by particulate emissions and nitrogen oxides has attracted more and more attention. The national emission control standards for particulate pollutants and NOx in various industries have also been continuously improved. High-temperature gas emissions from industries such as coal-fired power generation and cement are the main sources of particulate pollutants and NOx emissions. NOx emissions from waste incineration, non-ferrous smelting, and glass industries cannot be ignored. According to incomplete statistics, only the glass industry emits The total amount of flue gas is ten...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/00C04B41/89
Inventor 张晓丽赵世凯薛友祥张久美宋涛
Owner SHANDONG RES & DESIGN ACADEMY OF IND CERAMICS
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